<script setup lang="ts">
//@ts-nocheck    解决ts类型报红
import { ref, onMounted } from 'vue'
import { Search } from '@element-plus/icons-vue'
import { Right, Back } from '@element-plus/icons-vue'
import { el } from 'element-plus/lib/locale'

const props = defineProps({
  modelValue: {
    type: Array,
    default: () => [],
  },
  label: {
    type: String,
    default: 'label',
  },
  nodeKey: {
    type: String,
    default: 'id',
  },
  fromData: {
    type: Array,
    default: () => [],
  },
  toData: {
    type: Array,
    default: () => [],
  },
  defaultProps: {
    type: Object,
    default: {
      label: 'label',
      value: 'id',
      disabled: 'disabled',
    },
  },
  // 是否树结构
  three: {
    type: Boolean,
    default: true,
  },
})

// 定义emit
const emit = defineEmits(['checkVal', 'change', 'modelValue'])
const treeRef = ref()

// 右侧数据
const toData = ref([])

// 去右边
const threeToRight = () => {
  const checkNodes = treeRef.value.getCheckedNodes(false, false)
  // 过滤部门本身
  console.log(checkNodes, 'checkNodes')

  const newArr = toData.value.concat(checkNodes.filter((t: any) => t.type == 1))

  console.log(newArr, 'newArr')

  let obj = {}
  let peon = newArr.reduce((cur, next) => {
    obj[next[props.nodeKey]]
      ? ''
      : (obj[next[props.nodeKey]] = true && cur.push(next))
    return cur
  }, []) // 设置cur默认类型为数组，并且初始值为空的数组
  console.log(peon, 'peon')

  toData.value = peon
  toData.value.forEach((t) => (t.rightActive = false))
  treeRef.value.setCheckedKeys([], false)
  checkVal()
  console.log(props.fromData, toData.value, 'props.fromData')
  console.log(props.fromData, 'props.fromData==========')

  toRightDg(props.fromData)
}

// 去左边
const threeToLeft = async () => {
  // for (var i = 0; i < toData.value.length; i++) {
  //   console.log(toData.value[i].rightActive, 'toData.value[i].rightActive')

  //   if (toData.value[i].rightActive) {
  //     toData.value[i].rightActive = false
  //     toData.value.splice(i, 1)
  //     i -= 1
  //   }
  // }

  checkVal()

  console.log(toData.value, 'toData.value')

  toLeftDg(props.fromData, false)
  // treeRef.value.setCheckedKeys([], false)
}

// 去右边 递归禁用
const toRightDg = (arr: any) => {
  arr.forEach((left: any) => {
    toData.value.forEach((right) => {
      if (left.children?.length > 0) {
        toRightDg(left.children)
      }
      if (left[props.nodeKey] == right[props.nodeKey]) {
        // 已选的不可重复勾选
        left.disabled = true
      }
    })
  })
}

// 去左边 递归禁用
const toLeftDg = (arr: any) => {
  arr.forEach((left: any) => {
    console.log(left, 'left')
    toData.value.forEach((right, i) => {
      console.log(right, 'right')

      if (left.children) {
        toLeftDg(left.children)
      }

      if (left[props.nodeKey] == right[props.nodeKey]) {
        // 已选的不可重复勾选
        left.disabled = false
        toData.value.splice(i, 1)
      }
    })
  })
}
/**
 * 平顺结构处理数据-------------------------------------------->
 */
// 左侧点击复选框时

// 去右边
const toRight = () => {
  let peon = props.fromData.reduce((cur, next) => {
    next.leftActive ? cur.push(next) : ''
    return cur
  }, []) // 设置cur默认类型为数组，并且初始值为空的数组

  toData.value = peon
  // 勾选为false初始值
  toData.value.forEach((t) => (t.rightActive = false))
  // 禁用左侧已选择数据
  props.fromData.forEach((left) => {
    toData.value.forEach((right) => {
      if (left[props.nodeKey] == right[props.nodeKey]) {
        left.disabled = true
      }
    })
  })
  checkVal()
}

// 去左边
const toleft = () => {
  for (var i = 0; i < toData.value.length; i++) {
    if (toData.value[i].rightActive) {
      toData.value[i].rightActive = false
      const obj = props.fromData.find(
        (t) => t[props.nodeKey] == toData.value[i][props.nodeKey]
      )

      if (!obj) return console.error('未找到:toleft')
      obj.leftActive = false
      obj.disabled = false
      toData.value.splice(i, 1)
      i -= 1
    }
  }

  // 恢复状态 选择状态 toData

  // 初始左侧状态
  if (toData.value.length <= 0) {
    props.fromData.forEach((t) => {
      t.leftActive = false
      t.disabled = false
    })
  }
  checkVal()
}

// 判断是否禁用去右边
const leftBtnDisabled = computed(() => {
  if (props.three) return false
  const leftActive = props.fromData.some((t) => t.leftActive)
  const disabled = props.fromData.every((t) => t.disabled)
  return !leftActive || disabled
})

// 判断是否禁用去左边
const rightBtnDisabled = computed(() => {
  if (props.three) return false
  return (
    !toData.value.some((t) => t.rightActive == true) || toData.value.length <= 0
  )
})

// 回显
onMounted(() => {
  if (props.toData?.length > 0) {
    sessionStorage.setItem('toData', JSON.stringify(props.toData))
    toData.value = JSON.parse(sessionStorage.getItem('toData'))

    if (props.three) {
      // const arr = toData.value.map((t) => t.id)
      // // toRightDg(props.fromData)
      // treeRef.value.setCheckedNodes(arr, false)
    } else {
      // 勾选为false初始值
      toData.value.forEach((t) => (t.rightActive = false))
      // 禁用左侧已选择数据
      props.fromData.forEach((left) => {
        toData.value.forEach((right) => {
          console.log(
            left[props.nodeKey],
            right[props.nodeKey],
            'left[props.nodeKey]'
          )
          if (left[props.nodeKey] == right[props.nodeKey]) {
            left.disabled = true
            left.leftActive = true
          }
        })
      })

      checkVal()
    }
  }
})

// 返回父组件
const checkVal = () => {
  // emit(
  //   'change',
  //   toData.value.map((t) => t[props.nodeKey])
  // )
  // emit(
  //   'update:modelValue',
  //   toData.value.map((t) => t[props.nodeKey])
  // )
  // emit('changeSlot', toData.value)
}

const aaa = (arr) => {
  arr.forEach((t) => {
    if (t.children && t.children.length > 0) {
      aaa(t.children)
      t.disabled = false
    } else {
      if (!t.parentId) t.disabled = true
    }
  })
}

nextTick(() => {
  aaa(props.fromData)
  // if (props.fromData)
  // if (props.toData?.length > 0) {
  //   sessionStorage.setItem('toData', JSON.stringify(props.toData))
  //   toData.value = JSON.parse(sessionStorage.getItem('toData'))
  //   if (props.three) {
  //     const arr = toData.value.map((t) => t.id)
  //     toRightDg(props.fromData)
  //     treeRef.value.setCheckedNodes(arr, false)
  //   }
  // }
})

watch(
  () => props.fromData,
  () => {
    aaa(props.fromData)
    // if (props.toData?.length > 0) {
    //   sessionStorage.setItem('toData', JSON.stringify(props.toData))
    //   toData.value = JSON.parse(sessionStorage.getItem('toData'))
    //   if (props.three) {
    //     const arr = toData.value.map((t) => t.id)
    //     toRightDg(props.fromData)
    //     treeRef.value.setCheckedNodes(arr, false)
    //   }
    // }
  }
)
defineExpose({
  toData,
})
</script>
// 封装组件
<template>
  <el-card class="treeTransfer" ref="pTreeTransRef">
    <!-- 左边 -->
    <div class="leftTree">
      <div class="list">
        <p class="left_title title">用户列表</p>
        <!-- 搜索 -->
        <div class="left_input">
          <slot name="left_input" />
        </div>
        <el-tree
          v-if="props.three"
          ref="treeRef"
          :data="props.fromData"
          show-checkbox
          :node-key="props.nodeKey"
          highlight-current
          :props="props.defaultProps"
        />

        <template v-else>
          <div
            class="right_item"
            :class="['item', { rightActive: item.rightActive }]"
            v-for="(item, index) in props.fromData"
            :key="index"
          >
            <div class="right_item_main">
              <input v-show="false" v-model="item.disabled" />
              <el-checkbox
                :disabled="false"
                style="width: 15.375rem"
                v-model="item.leftActive"
                >{{ item[props.defaultProps.label] }}</el-checkbox
              >
              <slot class="leftItem" name="leftItem" :item="item" />
            </div>
          </div>
        </template>
      </div>
    </div>
    <!-- 中间按钮 -->
    <div class="btnDiv">
      <div class="mb20" @click="props.three ? threeToRight() : toRight()">
        <el-button :disabled="leftBtnDisabled" :icon="Right" circle />
      </div>
      <div class="mt20" @click="props.three ? threeToLeft() : toleft()">
        <el-button :icon="Back" circle :disabled="rightBtnDisabled" />
      </div>
    </div>
    <!-- 右边 -->
    <div class="rightTree">
      <div class="list">
        <p class="left_title title">已选列表</p>
        <!-- 搜索 -->
        <div class="left_input">
          <slot name="right_input" />
        </div>

        <div
          class="right_item"
          :class="['item', { rightActive: item.rightActive }]"
          v-for="(item, index) in toData"
          :key="index"
          @click="checkNode(item)"
        >
          <div class="right_item_main">
            <el-checkbox style="width: 15.375rem" v-model="item.rightActive">{{
              item[props.defaultProps.label]
            }}</el-checkbox>
            <slot class="rightItem" name="rightItem" :item="item" />
          </div>
        </div>
        <!-- <el-empty description="description" v-if="toData.length == 0" /> -->
      </div>
    </div>
  </el-card>
</template>

<style lang="scss" scoped>
.treeTransfer ::v-deep .el-card__body {
  display: flex;
  justify-content: space-around;
}
.treeTransfer {
  .rightTree,
  .leftTree {
    .left_title {
    }
    .list {
      width: 12.5rem;
      height: 22.75rem;
    }
  }
  .btnDiv {
    margin-top: 5.125rem;
  }
}

.right_item_main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  .rightItem {
    margin-left: 50px;
  }
}
</style>
